Vehicle Details
Body Style
Truck
Engine
3.0L 6Cyl
Exterior Colour
Silver
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303731
Fuel Type
Diesel
Trim Details
Crew Cab Short Box 4-Wheel Drive AT4
Description
The 2026 GMC Sierra 1500 AT4 combines premium refinement, off-road capability, and advanced diesel efficiency into one bold full-size pickup. Built for drivers who want rugged performance without compromising comfort, this AT4 stands out with aggressive styling, trail-ready engineering, and upscale technology, equally at home on the highway, at the worksite, or far beyond the pavement.Â
Performance & CapabilityÂ
Engine: Duramax® 3.0L Turbo-Diesel delivering impressive torque, smooth power delivery, and excellent efficiency Â
Transmission: 10-speed automatic transmission with Electronic Precision Shift for refined responsiveness Â
Drivetrain: Autotrac® 4-Wheel Drive (4WD) with two-speed transfer case for confident all-terrain traction Â
Off-Road Suspension Package engineered for enhanced ground clearance and trail capability Â
Automatic Locking Rear Differential for improved grip in mud, snow, and uneven terrain Â
Hill Descent Control providing greater confidence on steep off-road descents Â
Rear Axle Ratio: 3.23 ratio balancing towing capability and everyday drivability Â
Trailering Equipment: Integrated trailer brake controller, Hitch Guidance with Hitch View, and in-vehicle trailering app Â
Heavy-Duty Air Filter and 220-amp alternator built for demanding workloads and towing needs Â
Skid Plates and red front recovery hooks adding rugged off-road protection and utility Â
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Winter & Weather ComfortÂ
Heated & Ventilated Front Seats offering year-round comfort in every season Â
Heated Rear Outboard Seats and Heated Steering Wheel for added cold-weather luxury Â
Remote Start System to warm up or cool down the cabin before your drive Â
Dual-Zone Automatic Climate Control with humidity and windshield temperature sensors Â
Engine Block Heater for dependable winter performance Â
Rain-Sensing Windshield Wipers and deep-tinted glass for improved comfort and visibility Â
Premium Floor Liners with removable carpet inserts for easy all-season interior protection Â
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Interior Comfort & ConvenienceÂ
Front Bucket Seats with power adjustment and driver memory settings Â
Rear Seat Storage Package adding hidden functionality and cargo versatility Â
Wireless Charging Pad and multiple USB/120V power outlets for connected convenience Â
Keyless Open & Push-Button Start for seamless daily use Â
Wireless Apple CarPlay® & Android Autoâ„¢ compatibility for intuitive smartphone integration Â
13.4" GMC Premium Infotainment Touchscreen with Google Built-In compatibility and navigation capability Â
12" Reconfigurable Digital Driver Display with customizable vehicle information Â
Bose® Premium Audio System delivering rich, immersive sound quality Â
Power Tilt & Telescopic Steering Column wrapped in premium materials for personalized comfort Â
Spacious Crew Cab interior designed for passengers, gear, and long-distance comfort Â
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Safety & Driver AssistanceÂ
GMC Pro Safety Package designed to enhance driver confidence and awareness Â
Forward Collision Alert with Automatic Emergency Braking Â
Lane Keep Assist with Lane Departure Warning for added highway security Â
Adaptive Cruise Control for more relaxed long-distance driving Â
HD Surround Vision providing a comprehensive 360-degree exterior view Â
Front & Rear Park Assist simplifying parking and maneuvering in tight spaces Â
Rear Cross Traffic Braking and Rear Pedestrian Alert for added awareness in busy areas Â
Trailer Side Blind Zone Alert improving confidence while towing Â
Front Pedestrian Braking and Following Distance Indicator for enhanced everyday safety Â
Teen Driver Mode and Rear Seat Reminder adding peace of mind for family driving Â
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Exterior Styling & UtilityÂ
20" Machined Aluminum Wheels with Carbon Grey Metallic Accents for a bold AT4 appearance Â
Exterior Colour: Sterling Metallic — modern, refined, and ruggedly sophisticated Â
Signature AT4 styling with aggressive stance and premium blacked-out accents Â
LED Fog Lamps, LED Cargo Bed Lighting, and perimeter lighting for enhanced visibility and convenience Â
GMC MultiPro Tailgate with versatile loading, step, and workspace functionality Â
Spray-On Bedliner and 120V Bed-Mounted Power Outlet for work-ready durability and practicality Â
Off-Road High Clearance Assist Steps for easier entry while maintaining trail capability Â
Dual Exhaust and active aero shutters enhancing both style and efficiency Â
Rear Bumper CornerSteps and EZ Lift power lock/release tailgate for everyday usability Â
 Whether you’re towing a trailer, heading into the mountains, or navigating everyday life in comfort, the 2026 GMC Sierra 1500 AT4 delivers premium diesel performance, advanced technology, and unmistakable GMC toughness. It’s the perfect blend of rugged capability, upscale craftsmanship, and off-road confidence for drivers who demand more from their truck.Â
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Packages & Options
Standard Equipment
Technical Specifications
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AM/FM Stereo
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Auxiliary Audio Input
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Bluetooth Connection
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MP3 Player
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Navigation System
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Smart Device Integration
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Requires Subscription
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Satellite Radio
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Premium Sound System
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Steering Wheel Audio Controls
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WiFi Hotspot
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Aluminum Wheels
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Tires - Front All-Terrain
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Tires - Rear All-Terrain
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Conventional Spare Tire
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Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
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Wheelhouse liners, rear (Deleted with (PCP) AT4 CarbonPro Edition.)
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Bumper, front, body-colour lower
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Bumper, rear body-colour with corner steps
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Grille (Black chrome header and grille insert bars with gloss black accents.)
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Daytime Running Lights
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LED Headlights
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Automatic Highbeams
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Fog Lamps
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Lighting, perimeter
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Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
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Heated Mirrors
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Mirror Memory
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Power Folding Mirrors
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Power Mirror(s)
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Mirror caps, high gloss Black
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Intermittent Wipers
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Rain Sensing Wipers
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Variable Speed Intermittent Wipers
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Privacy Glass
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Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
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LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
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Integrated Tailgate Step
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Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
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Tailgate and bed rail protection caps, top
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Door handles, body-colour
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Bed Liner
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Bucket Seats
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Leather Seats
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Driver Adjustable Lumbar
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Power Driver Seat
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Passenger Adjustable Lumbar
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Power Passenger Seat
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Heated Front Seat(s)
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Mirror Memory
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Seat Memory
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Cooled Front Seat(s)
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Pass-Through Rear Seat
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Rear Bench Seat
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Heated Rear Seat(s)
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Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
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Floor covering, colour-keyed carpeting
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Floor Mats
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Adjustable Steering Wheel
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Steering wheel, wrapped
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Heated Steering Wheel
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Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
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GMC Premium information Display-13.4" diagonal Multicolour I touch screen
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In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module
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Compass, located in instrument cluster
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Exterior Temperature Display, located in radio display
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Brake lining wear indicator
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Power Windows
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Power Door Locks
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Keyless Entry
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Keyless Start
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Remote Engine Start
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Adaptive Cruise Control
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Cruise Control
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Security System
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Steering column lock, electrical
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Wireless Charging
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Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
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Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
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Auxiliary Audio Input
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MP3 Player
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USB ports, (2) charge-only, rear
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A/C
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Climate Control
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Multi-Zone A/C
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Air vents, rear
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Rear Defrost
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Auto-Dimming Rearview Mirror
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Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
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Diesel Fuel
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Straight 6 Cylinder Engine
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Turbocharged
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10-Speed A/T
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A/T
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Transmission w/Dual Shift Mode
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Rear axle, 3.23 ratio
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Pickup bed
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GVWR, 7200 lbs. (3266 kg) (Requires TK10*43 Crew Cab 4WD model with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
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Keyless Start
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Air filter, heavy-duty
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Automatic Stop/Start
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Hill Descent Control
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Locking/Limited Slip Differential
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Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)
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Suspension, Off-Road with 2" factory installed lift and monotube shocks
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Four Wheel Drive
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Alternator, 220 amps
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Battery, heavy-duty 850 cold-cranking amps/95 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
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Frame, fully-boxed, hydroformed front section
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Trailer brake controller, integrated
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Tow Hooks
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Skid Plates
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Cargo tie downs (12), fixed, rated at 500 lbs per corner
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Power Steering
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4-Wheel Disc Brakes
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ABS
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Exhaust, dual system (Includes chrome exhaust tips. Not available with (L87) 6.2L EcoTec3 V8 engine.)
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Exhaust, aluminized stainless-steel muffler and tailpipe
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Tow Hitch
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Automatic Highbeams
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Front Collision Mitigation
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Front Collision Warning
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Lane Departure Warning
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Lane Keeping Assist
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Front Collision Mitigation
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Front Collision Warning
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Stability Control
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Traction Control
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Daytime Running Lights
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Driver Air Bag
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Front Head Air Bag
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Front Side Air Bag
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Passenger Air Bag
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Passenger Air Bag Sensor
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Rear Head Air Bag
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Requires Subscription
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Telematics
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Hitch View with image adjustment, Pan/Zoom/Tilt
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Hitch Guidance
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Aerial View Display System
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Back-Up Camera
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Trailer Camera Provisions and trailer viewing software
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Rear Parking Aid
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Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
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Lane Departure Warning
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Lane Keeping Assist
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Blind Spot Monitor
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Cross-Traffic Alert
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Rear Pedestrian Alert
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Driver Monitoring
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Seat Belt Adjustable Guide Loops, front row only
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Rear Seat Belt Indicator
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Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) GMC Pro Safety.)
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Tire Pressure Monitor
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Rear Seat Reminder
No matches were found.
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Vehicle NameGMC Sierra 1500
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Body StyleCrew Cab Pickup
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Body CodeE63
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DrivetrainFour Wheel Drive
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Trans Order CodeMQC
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Trans Type10
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Trans Description Cont.Automatic
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First Gear Ratio (:1)4.70
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Second Gear Ratio (:1)2.99
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Third Gear Ratio (:1)2.15
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Fourth Gear Ratio (:1)1.77
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Fifth Gear Ratio (:1)1.52
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Sixth Gear Ratio (:1)1.28
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Seventh Gear Ratio (:1)1.00
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Eighth Gear Ratio (:1)0.85
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Ninth Gear Ratio (:1)0.69
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Tenth Gear Ratio (:1)0.64
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Reverse Ratio (:1)4.87
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Transfer Case ModelMagna MP3023/4
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Transfer Case Gear Ratio (:1), High1.00
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Transfer Case Gear Ratio (:1), Low2.69
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Passenger Capacity5
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Front Head Room (in)43.03
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Front Leg Room (in)44.53
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Front Shoulder Room (in)64.54
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Front Hip Room (in)60.78
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Second Head Room (in)40.12
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Second Leg Room (in)43.4
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Second Shoulder Room (in)64
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Second Hip Room (in)59.24
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Gross Axle Wt Rating - Front (lbs)3800
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Gross Axle Wt Rating - Rear (lbs)3800
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Curb Weight - Front (lbs)2845
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Curb Weight - Rear (lbs)1981
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Gross Vehicle Weight Rating Cap (lbs)7200
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Gross Combined Wt Rating (lbs)15000
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EnerGuide Estimate - City (L/100 km)10.7
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EnerGuide Estimate - Hwy (L/100 km)9.3
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G/km Of CO2 Emissions270
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Dead Weight Hitch - Max Trailer Wt. (lbs)5000
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Dead Weight Hitch - Max Tongue Wt. (lbs)500
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Wt Distributing Hitch - Max Trailer Wt. (lbs)8700
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Wt Distributing Hitch - Max Tongue Wt. (lbs)870
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)6700
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)1675
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Maximum Trailering Capacity (lbs)9000
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Engine TypeTurbocharged Diesel I6
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Fuel SystemDirect Injection
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Engine Order CodeLZ0
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Displacement3.0L/183
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SAE Net Horsepower @ RPM305 @ 3750
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SAE Net Torque @ RPM495 @ 2750
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Cold Cranking Amps @ 0° F (Primary)850
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Maximum Alternator Capacity (amps)220
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Frame TypeHydroformed
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Suspension Type - FrontIndependent
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Suspension Type - RearSolid Axle
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Spring Capacity - Front (lbs)3800
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Spring Capacity - Rear (lbs)3850
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Axle Capacity - Front (lbs)3800
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Axle Capacity - Rear (lbs)3800
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Axle Ratio (:1) - Front3.23
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Axle Ratio (:1) - Rear3.23
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Stabilizer Bar Diameter - Front (in)1.3
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Front Tire Order CodeQAE
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Rear Tire Order CodeQAE
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Spare Tire Order CodeQAQ
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Front Tire Size275/60R20SL
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Rear Tire Size275/60R20SL
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Spare Tire Size255/80R17SL
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Front Tire Capacity (lbs)3800
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Rear Tire Capacity (lbs)3800
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Revolutions/Mile @ 45 mph - Front (Rev/Mile)N/A
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Revolutions/Mile @ 45 mph - Rear (Rev/Mile)N/A
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Revolutions/Mile @ 45 mph - Spare (Rev/Mile)N/A
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Front Wheel Size (in)20 x 9
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Rear Wheel Size (in)20 x 9
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Spare Wheel Size (in)17 x 8
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Front Wheel MaterialAluminum
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Rear Wheel MaterialAluminum
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Spare Wheel MaterialSteel
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Steering TypeElectric Rack & Pinion
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Turning Diameter - Curb to Curb (ft)47.3
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Turning Diameter - Wall to Wall (ft)N/A
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Brake TypePwr
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Brake ABS System4-Wheel
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Disc - FrontYes
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Disc - RearYes
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Front Brake Rotor Diam x Thickness (in)13 x 1.18
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Rear Brake Rotor Diam x Thickness (in)13.6 x 0.79
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Fuel Tank Capacity, Approx (L)91
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Wheelbase (in)148
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Length, Overall (in)232.9
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Width, Max w/o mirrors (in)81.24
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Height, Overall (in)78.35
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Ground Clearance, Front (in)11.1
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Ground Clearance, Rear (in)11.1
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Cargo Box Length @ Floor (in)69.92
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Cargo Box Width @ Floor (in)71.4
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Cargo Box Width @ Wheelhousings (in)50.63
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Cargo Box (Area) Height (in)22.42
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Cargo Volume (ft³)62.9
No matches were found.
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